Individual #Prussia__Preussen  a former kingdom in north-central Europe including present-day northern Germany and northern Poland; "in the 19th century Prussia led the economic and political unification of the German states"
  part:  Brandenburg
  member:  Prussian
  part of:  Germany  Poland
  type:  geographical_area__geographic_area__geographical_region__geographic_region  a demarcated area of the Earth

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